Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems
arXiv:1901.01895 · doi:10.1016/j.cnsns.2019.105150
Abstract
Mode-division multiplexing (MDM) is seen as a possible solution to satisfy the rising capacity demands of optical communication networks. To make MDM a success, fibers supporting the propagation of a huge number of modes are of interest. Many of the system aspects occurring during the propagation can be evaluated by using appropriate models. However, fibers are a nonlinear medium and, therefore, numerical simulations are required. For a large number of modes, the simulation of the nonlinear signal propagation leads to new challenges, for example regarding the required memory, which we address with an implementation incorporating multiple GPU-accelerators. Within this paper, we evaluate two different approaches to realize the communication between the GPUs and analyze the performance for simulations involving up to 8 Tesla GPUs. We show results for a MDM transmission system utilizing the extremely large but practically very relevant number of 120 spatial modes as an application example and analyze the impact of the nonlinear effects on the transmitted signals.
References in corpus (6)
- Space Division Multiplexing in Optical Fibres
- Nonlinear Propagation in Multimode and Multicore Fibers: Generalization of the Manakov Equations
- Multimode Nonlinear Fiber Optics: Massively Parallel Numerical Solver, Tutorial and Outlook
- Adaptive Finite Element Method for Simulation of Optical Nano Structures
- Soliton trapping in multimode fibers with random mode coupling
- Parallel Implementations of the Split-Step Fourier Method for Solving Nonlinear Schrödinger Systems